QUANTUM INTERFERENCE IN SPONTANEOUS EMISSION OF AN ATOM EMBEDDED IN A DOUBLE-BAND PHOTONIC CRYSTAL
QUANTUM INTERFERENCE IN SPONTANEOUS EMISSION OF AN ATOM EMBEDDED IN A DOUBLE-BAND PHOTONIC CRYSTAL
复制标题
DOI：
10.1103/physreva.65.063802
复制
发表时间：
2002-05
影响因子：
2.9
通讯作者：
Han-Zhuang Zhang;S. Tang;P. Dong;Jun He
中科院分区：
文献类型：
--
作者：
Han-Zhuang Zhang;S. Tang;P. Dong;Jun He
研究了V型三能级原子和双V型四能级原子在双光子带隙材料中自发辐射谱的量子干涉现象。我们证明了在光谱中不仅有一条黑色的暗线，而且还有一条窄的自发谱线。暗线是由辐射场的态密度的相消干涉或奇异性引起的。窄谱线是由联合相长干涉下的布居转移引起的。自发辐射谱的情况下，单带和双带光子带隙水库进行了比较。
Quantum interferences in spontaneous emission spectrum from a V-type three-level and a double V-type four-level atom embedded in a double-band photonic band-gap material have been investigated. We demonstrate that there is not only a black dark line, but also a narrow spontaneous line in the spectrum. The dark line results from a destructive interference or singularities of the density of states of the radiation field. The narrow spectral line arises from a population transfer under joint constructive interferences. The spontaneous emission spectrum is compared to the cases of single-band and double-band photonic band-gap reservoirs.